Is there a better "comfort drop"?

45 hydrogel lens-wearing patients with healthy eyes and symptoms of dryness when wearing their lenses were asked to compare the effect of 10 different drops to reduce their symptoms of dryness. The drops were used in a random and blind fashion. Although there were great variations in individual responses, as a group these subjects preferred nonpreserved drops to reduce their symptoms of dryness.

RCT Entities:   Population Interventions Outcomes